Reference Book: Star Wars Saga Edition Core Rulebook
See also: Actions in Combat
You can take two consecutive Swift Actions in the same round to more carefully line up a ranged attack. When you do so, you ignore all Cover bonuses to your target's Reflex Defense on your next attack. You still must have Line of Sight to the target, however.
You lose the benefits of Aiming if you lose line of sight to your target or if you take any other Action before making your attack. Aiming provides no benefit when making an Area Attack.
Careful Shot[]
If you have the Careful Shot feat, you gain a +1 bonus on your ranged attack roll when you take the time to Aim first.
Deadeye[]
If you have the Deadeye feat, you deal an extra die of damage when you take the time to Aim first.